Home / 725,669.07-1,001,435.27-398,995.89

Finding the Fourth Proportional to 725,669.07, 1,001,435.27 and 398,995.89

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Solution

The fourth proportional to 725,669.07, 1,001,435.27 and 398,995.89 is: 550,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,669.07 : 1,001,435.27 = 398,995.89 : x
  2. Step 2: Convert to fraction form
    725,669.07/1,001,435.27 = 398,995.89/x
  3. Step 3: Cross multiply
    725,669.07x = 1,001,435.27 × 398,995.89
  4. Step 4: Simplify right side
    725,669.07x = 399,568,554,836.06
  5. Step 5: Solve for x
    x = 399,568,554,836.06/725,669.07
  6. Step 6: Final answer
    x = 550,620.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.